Pole base



FIG. 1 is a top perspective view of a pole base showing my new design;

FIG. 2 is a right side view of the pole base, with the left, front, and back being a mirror image thereof;

FIG. 3 is a top view of the pole base;

FIG. 4 is a bottom view of the pole base; and,

FIG. 5 is a bottom perspective view of the pole base.

Each of the views of the right, left, front and back sides of the pole base are the same. 

CLAIM The ornamental design for a pole base, as shown and described. 